2 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
3 * Copyright (c) 2007 Mans Rullgard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 int av_strstart(const char *str, const char *pfx, const char **ptr)
31 while (*pfx && *pfx == *str) {
40 int av_stristart(const char *str, const char *pfx, const char **ptr)
42 while (*pfx && toupper((unsigned)*pfx) == toupper((unsigned)*str)) {
51 char *av_stristr(const char *s1, const char *s2)
57 if (av_stristart(s1, s2, NULL))
64 size_t av_strlcpy(char *dst, const char *src, size_t size)
67 while (++len < size && *src)
71 return len + strlen(src) - 1;
74 size_t av_strlcat(char *dst, const char *src, size_t size)
76 size_t len = strlen(dst);
78 return len + strlen(src);
79 return len + av_strlcpy(dst + len, src, size - len);
82 size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...)
84 int len = strlen(dst);
88 len += vsnprintf(dst + len, size > len ? size - len : 0, fmt, vl);
94 char *av_d2str(double d)
96 char *str= av_malloc(16);
97 if(str) snprintf(str, 16, "%f", d);